Car.



No. 786,224. PATENTED MAR. 28, 1905. C. A. LINDSTRUM & J. F. STREIB.

GAR.

APPLICATION FILED APR. 25. 1904.

2 SHEETSSHEET 1.

INVENTORS flaflzm.

UNITED STATES Patented March as, 1905.

PATENT OFFICE.

CHARLES A. LINDSTROM, OF' ALLEGHENY, AND JOHN F. STREIB, OF AVALON,PENNSYLVANIA, ASSIGNORS TO PRESSED STEEL CAR COMPANY, OF PITTSBURG,PENNSYLVANIA, A CORPORATION OF NEIV JERSEY.

CAR.

SPECIFICATION forming part of Letters Patent No. 786,229, dated March28, 1905. Application filed April 25, 1904. Serial No. 204,706.

To all whmn it may concern.-

Be it known that we, CI-IARLEs A. LIND- sTRoM, of Allegheny, and J OHNF. STREIB, of Avalon,Allegheny county,Pennsylvania,have invented a newand useful Car, of which the following is a full, clear, and exactdescription, reference being had to the accompanying drawings, formingpart of this specification, in which Figure 1 is a top plan view of adiaphragm in accordance with our invention. Fig. 2 isa vertical sectionon the line II II of Fig. 1. Fig. 3 isa vertical cross-section on theline III III of Fig. 2. Fig. 4 is a similar section on the line IV IV.Fig. 5 illustrates a modification, and Figs. 6 to 9 are sectional viewsillustrating modifications.

The object of our invention is to provide a car construction in whichthe cross membersthat is to say, the bolsters or diaphragms are lowered,so as to permit the use of continuous stringers for the floor and toprovide a wide surface for the stringers. It affords a strongarrangement in which a minimum number of rivets are employed to fastenthe parts together. The diaphragm is composed of avertical member,preferably with integral bent flanges, which constitutes the web, andattached channels or angles, which constitute the flanges. Thediaphragms extend between the center sill and side sills, and thechannelflanges extend through the center sills and impart great strengthto the device, as well as a broad resting-surface for the stringers.

In the drawings, 2 represents the center sill, and 3 3 are the verticalwebs of the diaphragm composed of plates having integral bent flanges 4at the sides and ends, through which they are riveted to the center.sill and t0 the side sills 5. Along the top of the webs, extendingtransversely through the center sill, isa channel-beam 6, which isriveted to the flanges 4 as a cap member. A similar channel 7 extendsalong the bottom margin of the webs and under the center sill and isriveted thereto, the flanges of the channels being flattened,

as at I), under the center sill. The webs are below the level of the topof the center sill and side sills, and in the intermediate space arecontinuous stringers 8, which are secured by bolts 9 passing through thechannels6 and through the flanges 4.

Instead of the integral flange 4 at the top of the diaphragm-webs we mayemploy attached angle-pieces 4, constituting flanges, as shown in Fig.5.

The diaphragm-webs may be attached to the center sill either byconnecting angle-irons or by bending the end of the diaphragm-web.

In Fig. 6 we show a modification which differs from the constructionshown in Figs. 1 to 4 in that the channel-beam 7 along the lower edge ofthe diaphragm-web has its flanges directed downwardly, so as to presentits flat bottom side to the lower edge of the web. This makes itunnecessary to flatten the middle portion of the channel, as at b inFig. 2.

In the construction shown in Fig. 7 the channel-beam at the top edge ofthe diaphragmweb of Figs. 1 to 4 is substituted by a beam of T-section6, which is riveted to the margin of the diaphragm-web, as shown.

InFig. 8the top and bottom channel-beafns of Figs. 1 to4 are replaced bypairs of angles 6 7, which are riveted to the margins of the web.

In the modification shown in Fig. 9 the flange member 7 b passes throughthe center sill in like manner to the arrangement of the flange member 6of this and the other figures.

The importance of using a flanged member at the margin of the diaphragmwhich extends through-the center sill is that the flanges aflordmaterial which, being located at a considerable distance from theneutral axis of the diaphragm, gives the strongest possible constructionfor a given weight of metal. It

thus constitutes a bolster or diaphragm of rigid construction moresuitable to absorb horizontal impacts than the bolsters and diaphragmswhich have heretofore been em ployed.

W ithin the scope of our invention the device may be modified, sinceWhat We claim is 1. A cross member for cars having a Web composed of avertical member flanged at the top and having also an attached flangedcap member; substantially as described.

2. A car having a center sill, a cross member composed of a vertical Webattached at the ends to the center sill, and having an attached flangedmember extending along the margin and through the center sill;substantially as described.

3. A car having a center sill, a cross member composed of a vertical webhaving integral flanges at the inner ends and margin, attached at thesaid ends to the center sill, and having an attached flanged memberextending along the margin and through the center sill; substantially asdescribed.

4. A car having a center sill, a cross member composed of a vertical Webhaving an attached flanged member extending along a margin and throughthe center sill; substantially as described.

5. A car having a center sill, a cross member composed of a vertical Webhaving flanges at the inner ends and margin, attached at the said endsto the center sill, and having an attached channel extending along themargin and through the center sill; substantially as.

8. A car having a center sill, a cross member composed of a vertical Webhavingflanges at the ends, attached at the ends to the center sill andside sill below the level of the center sill, and a marginal channelmember extending through the center sill; substantially as described.

9. A car having a center sill, a cross member composed of a verticalweb, and channels applied to the top and bottom of the dia phragm, theupper channel extending through the center sill; substantially asdescribed.

10. A car having-a center sill, a cross member composed of a verticalWeb, and channels applied to the top and bottom of the diaphragm, theupper channel extending through the center sill and the lower channelhaving flattened flanges at the place of attachment to the center sill;substantially as described.

In testimony whereof We have hereunto set our hands.

CHAR-LES A. LINDSTROM. JOHN F. STREIB. Witnesses:

H. B. FISHER, FRANK DITCHFIELD.

